Knockdown chair



Sept. 23, 1930*. W, s ALLEN 1,776,534

KNOCKDOWN CHAIR Filed July 5,` 1929 2 Sheets-Sheet 1 KNocKDwN CHAIR Filed July f5, 1929 2 Sheets-Sheet 2 l za 28 figg. s

.Fig-10. l al; 5f n gi f"-- as \2, 13j f I 5 25 .32

' \/:l`28 37 lrwenl'or:

Willard JmL/Men,

c Patented sept. 23, Y1930 UIWTEIJSf'fvfeTES PATENT emes.;

nimm or AcToN, MAssAcHusnTTs c v.,appuieatiei1, ,hier Jury e,

nventien ilell'ates to'knockdewn chairs 1 sind h ,fOr-@ae object l the preseason of a figirdjfehar particularly adaptada; the use f' of s cheels, saidchair havinga braced metal i v #5 frameworktofwhiehthe,baclgseatandflegs Y Y igure represents a horiz'qntal section von Figure 4! represents :horizont-al 'Section i zal reuse represent siaefel'eaimfof s are `adaptvedtobeseeured.-

f .seetien'cf said freine, `the cutting plane being f zoir HHG-719975 onFigl "i K Figure. 8 rrep resentsv avertical section shew- 40 "ingthe means 0f'secu'ringtheleg'st the metal the. same, 'tlie en 9,"

lh'ls. Qbjectfis attained `:byw'the lvineehanism rposed similar rails 20 the metal Vfrankie to whichfthefbackjseat andV isere'6;represents@:Sidelevetbn fof 'Said' mieu Seesen Qf QH ,Lof Weber 192e. yserial no. 375,716.

throughout the several figures fof "the drawings. j

In the drawings, 10, 10 are two `uprights formed 0i metal angle plates and havinginterposed between their upper ends vand se- "55 s cured thereto themetal rail 0r angle platell.l

To the rear of the uprights 10, 10are fa pair of uprights 12, 12v also formed O f metal angle plates having a slight curvature as indicated yin Figs. 6 and 7 of they drawings.

4 Between'thes'e angle'plates kl2 and `secured to the upper and lower ends thereof 'are the meta-l angle platesor rails 13 and14.

-Each angleplate 12isadapted to receive a p `rear leg 15 and backmember 16 of thechar, 05

preferably made lin o'ne'piece and of weed Between the Iupper ends of the backm'embackrest, ,v v l A The angle plates 10 are adapted to receive "7 the front legs 18 of the chair. f Betweenthe upper ends ofthe angle plates v10 andthe upper ends ofthe angle plates 12`areinterposed thesderails 19 valso formed efrmetal angle plates, and between thelewer 75 end ef the angle plates l0 and12 are inter-v formed of metalfang'le .bersj16 are secured the rails 17 which'forrn a plates. l The opposite ends of these side rails 19 yandf() "are permanently secured to 'the up- "80 'rights 10 and 12. e p 1 n The rails 2O are 'conne'etedbythe bracebars "21 and'22, the opposite ends of which are y permanently secured 'to the horizontal flange of said railsf20`. p I, 85 The bar 22has a downwardly. extending flange4 23y set back some "distance `from the uprights '10, as shown in Fig; 7 rof the draw` ings. Y l l t i,

u i Y I v v. Preferably the wooden legs 15 and 18 are 90 ffraine, lthe' eutting'planebeing Online 8, 8,1()11. p Y f 1' .plates '10 and,12, als clearly' shown in Figs.

Vprovided*with recesses te receive the angle l 3, Land 97 thereby givinggreater rigidityv tothe legs when secured to the uprights lef, ,95

the metal'framework. Y l

I plate 19, the Yfront angle plate '11, and rear frame to which the legsland back .frame p v Y sion and'sec'ured ytolsaid framework, aseat '8' securedtothe top of' said metal: framework,

angle vplate 13, are provided with holes 24 to receive bolts 25 extending downwardly through vthese flanges from the wooden seat To give rigidity v Y Y p Y 28 of thefianges-fofthe members 11, 13,519

and 2O are turned over into contact with each other (see Fig. 10) and also with the inner faces of the verticalmemberslO and'i12.

rIhese ends 27, 28 are then spot welded to the members 10 and 12 forming a very rigid 15, 16 may be secured.

' The means for-securing.theflegsrl .and

4ba'ckfram'e 15, 16 to the uprights' 10 a1`1`df12- is shown more clearly/in Figs. 8 yand 9.

1A 1001629 'is used; havingfan' angular head 30 fitted into a recessin ythe outer corner ofy eachleg v1 8fandl bacl -memberj 15," 16., This bolt` extends diagonally yacross v the leg18V` or ybackV member 15, 16 and has a winged'nut 31 secured thereto.

. This nut'niaybe adjustedtosecurely-lock the members15, 16 anldlSto the upright anglel'plates 10 and v12.

The cross bars 21 and 22y not only yform Vbraces to give ample rigidity k tov the frame but 'also serve jas a support vfor lthe' hat or clothing of Athe student occupyingA the chair. A

The bolts' 25 are provided' with winged r`fclfa `pfingfmits k32by v'which 'the seat 26 mayv f be "secured'tofthe rails 1:1, 1S and 1,9@

p Set into vthe under face of the; seat are 'four' metal lbar s?)` secured to 'said seat by screws 34. v

The uppref y endseof'the bolts'i2t') heads y 3 5 in recesses'vlformed' in the bars toijplevent the belts 25 from tilrning.`

f'lThe' setback Of the baraagivs mp1@ TQOmfor the legs.

when'it is desired to' Ship theshair ai@ fnuts- 32 are removed from thebolts 25 and Y metal'frame vafter whieh 'the v,nut'sf32 are again threaded to said By ,removing :the :nuts si non traitons 29, the legsm18fandthebacky frame 15, ".16 'may be removed from the uprightangle plates 1 0,Y 12.1"r i a M f: VVVhenY this has v beendon'e the disassembled Parts may be p ackerll inlsmallspacefforshipment. Y .f Itisobvious thechair may again beasworkand whenf'the legs 18,/and backv-r frame tlefof V these up'rights are exposedl to view. 'f

wooden legs,seats, and back *f rameg 'thursigiv-Y tothe. frame the ends 2.7,V

` 1. As a new article of manufacture, a."V chairprovidedywithairectangular metal framework having at the cornersv thereof elongated upright angular depressions, a

chair legjdisposed ine'achaangular depres side rails atthe' lowerendfsa d framework, Y

their ends connected thereto? f previas with a reccageiar man framework f having lthe corners' thereof'el'ongatedup-V right angular depressions', v al; chair" leg disposed in each angular depression and ,secured to saidfram'ework, a seat secured'to the top of .[90 said metal framework, side rai'lsat thellower frontfo'f said framew'orkandprvided with a 95 downwardly `extending flange AS anew rt'i le of manufacturefa chair 'provided with arectangular metal framework .having 'et-the'. corners thereofanrehtariele plates, legs disposed fbetweenfthejflanges of imo 'thek forward uprights andfseeuredjthereto, a back frame includingapairof legs `disposed bet/veen ,the flanges' ef the/reef uielesl,1tjeend secured thereto,r railsinterposedbetweenlthe upperand lower ends ofysaid. uprightsand 3.105 i welded thereto, and a seat secured tothe/top railsfofsaidmetal framework.-

l4. As a 'new' article kof mafu'f cture,`-

rec-

K p v A y .tangular metal .framework for:y use in'ff'the f then the Vseat 26 may,bef-,removedgfrom the 'manufacturejof chairs yhavi-I'ylgfat the homers-am, thereof uprightangle'plateswithtiemembers l Y Vlcetween. the Vvlower Vends .thereof;v saidgangle f plates being :adapted to f hajvingfl chair n, legs secured thereto betweenfthe flangesthereof.

5f Asa new Y*article of manufacturqfarec- 1.11.5

tenaeler metal. .frereewerk fee eee i.1 1"ehe^ .manufacture of .chairs having atthe ,corners thereof uprightangle plateswithtiemembers between fthe upper and .lower ends thereof, Seid. anale platee. ,benaedeptedfe have -eheir @i f fege reeeured thereto between? the.: elaee thereof.Y z

6. "A, a newarticle ofmanufacture, areefaliguler metal frameworkgafer use in ,the E manufacture ofV chairs having at the f clorners i thereof elongatedluprightangle plates with ends thereof andsecured thereto,l said-upright angle plates being .adapted to have chaiIxlegS. 1 eeeeredetheretabetweeastheflanges .thereoim 2. jAsffa'new articleof manufacture,V ar chai-r 8f 17. As a newfarticle of manufacture, areetangular metal framework lfor use in the manufacture ofchars having at the corners thereofupright angle' plates with two side t 5 rails between the upper ends of the front and thereof upright angle .plates with two side 1 rails between the upper ends of the front and .i 1.5 rear uprights, said angle plates being adapted to havev chair legs secured thereto betweenv the flanges thereof and the lower siderails .having secured'theretorcross members, the

front [cross member being set back from the T20 frontuprights and provided with'a d0wn--.

v wardly extending flange. i 9. As a newv articleof manufacture, achair provided iwith a rectangular metal frame-l work having at zthe corners thereof upright c 25 angle plates and connecting top rails intern posed between said uprights, a leg disposed p between the flanges of each upright and secured thereto, a seat havingrecesses in the under face thereofmetal bars disposed in said Y 3o recesses and secured to the seat, headed bolts feXte'nding. downwardly y from, said lbars through perforations in said'top rails, andy clamping nuts threaded to said bolts.

. Signed by me at 294 Washington St., Bose''ton, Mass., this 1st day'ofJuly, 1929.'

` VVVILLARDYS.,'I-UAR'I ALLEN. Y, 

